Sarcoma of Bone and Connective Tissue

This is an open-label, non-randomized, multicenter Phase 1/2 trial evaluating a dual CAR-T cell therapy targeting CD146 and HER2 in patients with advanced sarcoma. Participants will receive lymphodepleting chemotherapy with cyclophosphamide and fludarabine, followed by sequential infusion of autologous CD146-specific and HER2-specific CAR-T cells. The Phase 1 portion will employ a dose-escalation design to assess safety and determine the recommended Phase 2 dose, while the Phase 2 expansion will evaluate preliminary efficacy (tumor response and survival outcomes). Approximately 40 patients (children and adults) with relapsed or refractory sarcomas will be enrolled across multiple centers. All participants will be followed for up to 36 months to monitor dose-limiting toxicities, objective response rates, progression-free survival, overall survival, and long-term safety.

SarcBOP - An interdisciplinary and translational registry SarcBOP aims to establish a database that integrates every aspect possibly relevant to sarcoma treatment and research. SarcBOP thus will not be limited to specific questions or patient groups, but instead will build a comprehensive database including clinical, pathologic, and radiologic information, multi-layered molecular data, and patient-reported outcomes, combined with a dedicated biobank for tissue samples and liquid biopsies. As the study integrates seamlessly with the clinical activities of the Heidelberg Sarcoma Center, the Molecular Diagnostics Program of NCT Heidelberg, including the NCT/DKTK MASTER Program, and with the NCT Trial Center, including the PMO Clinical Trials Program, SarcBOP will generate a comprehensive and continuously growing resource for clinicians, researchers, and, finally, patients.